A.永辉超市一天卖出5盒保温杯,每盒有2个,每个40元,一共卖了多少元? |
B.小明在长40米的游泳池里游了5个来回,他一共游了多少米? |
C.5个手工小组的队员,每组有2人,每人折40只纸鹤,一共折了多少只? |
D.疫情防控期间,朴朴平台2天售出口罩40盒,照这样计算,5天可售出口罩几盒? |
同类型试题
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x, x∈R, y∈[–1,1],周期为2π,函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x, x∈[–1,1], y∈[–π/2,π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2